Electric-railway car



(No Model.)

R. M. HUNTER.

v lTM'C'RI RAILWAY GAR. No. 424,206. Patented Mar. 25, 1890.

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UNITED STATES PATENT GEEICE.

RUDOLPH M. HUNTER, OF PHILADELPHIA, PENNSYLVANIA.

ELECTRIC-RAILWAY CAR.

SPECIFICATION forming part of Letters Patent No. 424,206, dated March 25, 1890.

Original application filed September 23, 1886, 239,930. .Again divided and this To all whom t may concern/ Beit known that I, RUDOLPH M. HUNTER, of the city and county of Philadelphia, and State of Pennsylvania, have invented an Improvement in Electric-Railway Cars, of which the following is a specification.

The claims of this application correspond to claims 56, 57, 59, 62, 63, 64, 65, 66, G7, and 68 of my application Serial N o. 239,930, and have been erased from that case.

My invention has reference to electric railways 5 and it consists in certain improvements, all of which are fully set forth in the following specification, and shown in the accompanying drawings, which form part thereof.

Iihis application is a divisionof my application, Serial No. 239,930, iiled .lune 1, 1887, which was a division of my earlier applicaisosig Serial No. 214,309, iiled September 23,

The object of my invention is to provide a suitable construction of motor-connection with the axles. I provide one or more motors with a common shaft having worm-wheels on each end to mesh with worms on two different axles. I prefer to arrange the motor-shaft oblique, so that one worm is above one axle and the other Worm below the other axle.

My invention also comprehends certain improvements in the connections of the motors with the source of power to provide proper regulation.

In the drawing is shown a sectional elevation of an electric-railway car embodying my invention..

B B are the supply or working conductors to supply current to the motor-circuit E.

C is the car.

D is a motor-frame, preferably supported upon the car-axles CZ or their boxes, the carbody being in most cases supported on springs. To this frame D one or more electric motors D2 are secured, all preferably having the same shaft or armature-shaft, which is also preferably set on an incline. Carried upon the ends of Vthis shaft are the worms D, which mesh with worm-wheels D on the axles d of the car, one of these worms being above one wormwheel and the other below the other worm- Serial No. 214,309. `Divided and another application filed .Tune 1,1887, Serial No. application filed February 18,

1888, Serial No. 264,456. (Nomodel.)

wheel. The Obliquity of the armature or motor shaft is not necessary, though desirable.

E is the motor-circuit supplying current from the collectors to the motors. To enable the proper governing of all the motors most perfectly I connect all of the armatures of the different motors, be they on one car or on onetrain, in one circuit E2, and all of the iieldmagnets in another circuit E', each provided with a current-indicator e. The armaturecircuit has a resistance-changer e2 and current-reverser E3, while the field-magnet circuit E has its own resistance-changer e and current-reverser E4. By this means the armature-circuit may be regulated, cut out, or have its current reversed without affecting the iield, and vice versa.

The construction of the motors shown in Fig. 2 is similar to that set out in my application, Serial No. 200,400, filed April 28, 1886, on which the armature is stationary and the iieldmagnets revolve. The directions of the currents are indicated by the arrows.

In this application I do not limit myself to the mere details shown, as they may be varied in many ways without departing from the invention herein set out.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent,`is

l. In an electrically-propelled vehicle, the combination of the two axles, with a wormwheel on each axle, an electric motor having its shaft extending from axle to axle, and a worm on each end meshing with the wormwheels to drive both axles simultaneously.

2. In an electrically-propelled vehicle, the copibination of the two axles, with a wormwheel on each axle, an electric motor arranged obliquely and having its shaft extending from axle to axle, above one axle and below the other, and a worm on each end meshing with the Worm-wheels to drive both axles simultaneously.

3. In anAelectrically-propelled vehicle, the 9 combination of the two axles, with a wormwheel on each axle, an electric motor arranged obliqnely and having its shaft extending from axle to axle, above one axle and below the.

other, a worm on each end meshing with the IOO Worm-Wheels to drive both axles simultaneously, and a motor-frame for supporting the motor carried by the axles.

4. In an electrically-propelled vehicle, the combination of two axles, an electric motor having its shafti'ng extending from axle to axle, a Worin operated by each end of the shaft and meshing with the worin-Wheels to drive both axles simultaneously, and a framework connected to the axles ior holding the worms at a fixed distance from the axles.

5. In an electrioally-propelled Vehicle, the combination of two axles, a Worm-Wheel on each axle, a main frame connecting the two axles, a motor supported upon said main frame and having its shaft arranged obliquely, a Worin-Wheel arranged above said axle, and a second worm-Wheel arranged below the other axle and each operated by the saine shaft, a frame extending` from said niaiu frame upwardly to support and hold one of the worms in Contact with the upper part of one of the worin-wheels, and a second frame extending downward and supporting the other worinwheel in Contact with the end portion of the other worin-wheel.

(3. In an electrically-propelled vehicle, the combination of an axle, a worin-Wheel upon said axle, a frame supported upon said axle, a motor secured to said frame and having its shaft arranged obliquely, a Worin-wheel arranged obliquely and operated by said oblique shaftof the motor, and training carried by the aforesaid frame to hold the Worm in a fixed relation with respect to the worin-wheel and axle.

7. In an electrically-propelled vehicle, the combination of two axles, a mainframe supported by said axles, a worm-Wheel upon one of the axles, a motor carried by the main framing having its shaft arranged obliquely, a Worm arranged obliquely and adapted to be rotated by said oblique shaft, and framing for holding said worin to the Worin-Wheel.

In testimony of which invention I hereunto set my hand.

RUDOLPH M. HUNTER.

Vitnesses:

Rioni). S. CHILD, J r., ERNEST HOWARD HUNTER. 

